Triangle Similarity Quiz (5 Questions)

1. True or False: Two triangles with two equal angles are similar.

2. What does SAS similarity require?

3. ΔABC ~ ΔDEF. Side AB/DE = 2, BC/EF = 2. True or False: SSS similarity holds?

4. How do you find the third angle of a triangle for similarity?

5. Give an example of triangle similarity in real life.

Answer Key

1. True

2. Two sides proportional and included angle equal

3. True

4. Use Triangle Sum Theorem: 180° − sum of two angles

5. Roof trusses, similar ramps, shadows of objects, etc.